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Sauron [17]
2 years ago
10

A city’s annual rainfall totals are normally distributed, and the probability that the city gets more than 43.2 inches of rain i

n a year is given by P (z greater-than-or-equal-to 1.5) = 0.0668. If the standard deviation of the city’s yearly rainfall totals is 1.8 inches, what is the city’s mean annual rainfall?
40.5 inches
41.4 inches
45.0 inches
45.9 inches
Mathematics
2 answers:
Sauron [17]2 years ago
5 0
41.4 inches I think that is the answer
ivanzaharov [21]2 years ago
4 0

Answer: So the answer wont be C or D because it doesn't get over 43.2 inches of water so if you do 43.2 -- 1.8 it will equal 41.4 inches

MARK ME BRAINLIEST!!!!!!!!!!!!!!!

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MA_775_DIABLO [31]

Answer:

B) 6 inches

Step-by-step explanation:

==>Given that ∆JKL ~ ∆TUV, it therefore means the ratio of proportion of the corresponding sides of ∆JKL and ∆TUV are equal.

Thus:

JK/TU = JL/TV = KL/UV

10/7.5 = 8/x = 13/9.75

Let's find x

10/7.5 = 8/x

=>Cross multiply

10*x = 8*7.5

10x = 60

Divide both sides by 10

x = 6 inches

Our answer is B) 6 inches

4 0
3 years ago
Determine if 9x2 - 42x + 49 can be the area of a square. If so, what would the value of x have to be if the area of the square i
Marizza181 [45]
9x² - 42x + 49 is a perfect square in that (3x-7)² is the factored version.

if the square has an area of 64square meters the value of x would be 5.

(3x - 7)² = 64        (get the square root of each side)
√(3x - 7)² = √64
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3x = 15                      (divide both sides by 3)
x = 5
4 0
3 years ago
What is x squared minus 1 in factored form
Andreyy89

Answer:

(x+1) (x-1)

Step-by-step explanation:

rewrite 1 as 1^2

Apply diffrence of two squares formula

x^2-y^2= (x+y)(x-y)

x^2-1^2= (x+1) (x-1)

4 0
3 years ago
Find the missing side of this right<br> triangle.<br> Х<br> 7<br> 12<br> X =<br> V[?
igomit [66]

Answer:

\sqrt{193}

Step-by-step explanation:

a^{2} +b^{2} =c^{2}

a = 7

b = 12

7^{2} + 12^{2} = 193

<h2>I hope this helped!! :)</h2><h3>have a great day! :)</h3>
3 0
3 years ago
A point is chosen at random in the circle.
HACTEHA [7]

Answer:

78.5%

Step-by-step explanation:

the percent of time the point will land in the square can be determined by dividing the area of the square by the area of the circle

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A(circle) = 3.14

A(square) = side squared

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A(square) = 2²

A(square) = 4 inches

3.14/4 = 78.5%

3 0
3 years ago
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